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Discussion Starter #1
Recently started working in a project 07 eps grizzly 700, after a few days it seems like we have gotten all of the wiring back right. But now the self diag system is throwing me a ton of codes thats leading me to think it's a faulty ecu. But wanted to pick y'alls brain.
As soon as you turn the key im showing Er-4
Then in self diag mode i have codes:
13
14
15
21
22
30
33
42
43
46

Any pointers or a direction you guys would suggest to head first would be greatly appreciated
 

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Not knowing "WHY" the wiring had to put "Back Right" My guess is the wiring is not right. The ER-2 code is telling you that there is an "INPUT SIGNAL ERROR".
Then the fact that all the rest of the codes relate to all of the sensors on board that talk back to the ECM and crate the code on the display console.
May be a ground or power issue at the ECM or from the Display unit.
Are you sure the ECM is getting power via the display wiring harness. If you have the manual check the schematic on the last pages. Item 33 is the display item 21 is the ECM. The harness connector is the image above labeled Y/L. - - - - *My best guess anyway.
 
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